. >> while the obama administration has agreed to delay a reading of his miranda rights under a public safety exemption, secretary of defense chuck hagel has not seen evidence to link the bombings to terror groups. scrutiny turns to the fbi who reportedly questioned the older brother tamerlan in 2011 at the request of a foreign government. this is so interesting. of russia. the fbi told the a.p. despite interviewing him and relatives they did not find any activity. the agency dropped the ball. richard, i wonder if there is going to be a lot of questions and maybe even hearings out of this or what comes to mind just knowing those basic facts? >> there probably will be hearings of the fbi whether it learned more or could have done more. critics say that is monday morning quarterbacking. it ought to be about what we were talking about, what can we do to prevent or identify young people who are radicalized and how did we respond and how what did we learn about lockdowns. as the military would say it ought not to just focus on fbi. it's much bigger and much broader. we have to learn a lot f